352 UMBELLIFERJi. 



short pedicels. Calyx-teeth ohsolete. Fruit ovoid, very slightly 

 flattened laterally. Kibs filiform. Oil-tubes solitary in the intervals 

 and 2 on the face. (Greek name of an umbelliferous plant.) 



1. A. majus L. Stem slender, branching above, IJ- to 2J ft. high; 

 leaves triternately dissected into small spatulate segments (2 to 6 

 lines long), which are laciniate or serrulate at apex; rays ahout 25 to 

 30, little unequal, f to 2 in. long; pedicels 1 to IJ lines long; bracts 

 linear below, parted above into 3 filiform divisions; hractlets lanceo- 

 late, acuminate, entire, scarious-margined at base; fruit less than 1 

 line long; carpels with concave face; oil-tubes solitary in the intervals, 



2 on the commissural side. 



Low places in grain fields near Yountville, 1893; Alvarado 

 Marshes, 1897. Naturalized from Europe. First record of its 

 occurrence in the New World as an established weed. 



15. CARUM L. 



Ours erect and slender glabrous biennials oi' perennials. Leaves 

 simply pinnate with few linear entire leaflets. Flowers white, in 

 compound umbels. Involucre of entire bracts or none. Involucels of 

 entire hractlets. Calyx-teeth small. Stylopodium conical. Fruit 

 ■ovate or oblong, laterally compressed, with obtuse ribs. Oil-tubes 

 solitary in the intervals, 2 on the face. (Karon, Greek name of the 

 Caraway.) 



Stems clustered, from a fascicle of coarse roots; fruit 3 lines long. . 



1. C. 

 Stem solitary, from a tuber or cluster of tubers ; fruit about 1 line long . 



2. C. Gairdneri. 



1. C. Kelloggi! Gray. Stems several from a fascicle of coarse and 

 hard fibrous roots, 3 to 5 ft. high; radical leaves 5 to 10 in. long, 

 ternate, each division pinnate with narrowly linear divisions 3 or 4 in. 

 long; cauline leaves similar but smaller; involuoral bracts and involu- 

 cel hractlets several, lanceolate or subulate; rays f to IJ in. long; 

 fruit 3 lines long; carpels frequently unequal or only one maturing. 



Very common in the open hill country about San Francisco Bay: 

 Oakland Hills; Vaca Hills; Napa Mountains; San Francisco Penin- 

 sula. Fl. July. Fr. Aug. -Oct. 



2. C. Gairdneri Gray. Stem solitary, 14 to 21 in. high, from a 

 tuberous root or a fascicle of such; leaves few, simply pinnate, with 3 

 to 7 linear leaflets 2 to 6 in. long; upper leaves mostly simple; rays 



3 to 6 lines long; involucre of several bracts or none; involucels of 

 linear acuminate hractlets; fruit ovate, 1 line long or a trifle more or 

 less; styles long. 



Not rare in open woods of the Coast Range Hills: Napa Mountains 

 to the Oakland Hills, southward to Southern California and north- 

 ward to British Columbia. July. Fr. Oct. 



16. PIMPINELLA L. 



Glabrous perennials with decompound leaves. Flowers white or 

 pinkish in ours, in compound umbels. Involucre and involucels 



